Sanitary trap.



Z 0 m 2 2 r p A d e t n e t a P P MA an T Y ED" A M AS H 8 9 6 0 (Application filed Mar. 1, 1900.)

(No Model.)

v IN vzz r05:

' l IIIIIIIHI Illllllllllllll form of the connection between the ring and I claim as new and desire to'secure byLetters Patent I s I y In a sanitary trap, thefco nbination with the body of the vessel the annular lip aaand 5 groove 1), the ribs b b and the seats 12 b on Y the ring, the metal of theneck extending into U UNITED STATES.

PATENT OFFICE.

ALBERT s. NEWTomoE PROVIDENCE, RHoDE IsL ND;

SANITARYTRAP'L,

srncrrrcnrron' forming part or Iietters Patent No. 69 8,21' 7,' dated April 22, 1902. Application filed llllarch 1, I900. Serial Ila 6,896. (No model.) i 1 T0 atZZ whom it may concern:

Be it known that I, ALBERTS. NEWTON, a citizen of the United States, residing at Providence, in the countyof Providence andState. of 'Rhode Island, have invented anewand useful Improvement in Sanitary Traps,,o which the following is a specification.

Sanitary traps and, similar deviceshaving a body made of lead, brass, or other soft cast metal have to be provided with an internallyscrew-threaded opening adapted to receive a cap or other externally-screw-threadedfixture.

The object of this invention is to secure a harder, more rigid, and a stronger screw thread connection; and to this end the invention consists in the peculiar and novel construction whereby a'hard-metal screw-threaded ring is secured in the opening of the vessel, as will be'more fully set'forth hereinafter.-

' Figure 1 is a top View of a sanitaryltrap provided with my screw-threaded ring. Fig. 2 is a side view of the ring. Fig.3 is a sectional view of a vessel the opening of which is reinforced with my improved ring. Fig. 4

is a section, on an enlarged scale,-showing' the manner of securing the hard-metal ring to the neck surrounding the opening of the vessel. Fig. 5 is a section on the line X X of Fig. 2, and Fig. 6 is a section of a modified the neck. In the drawings, A indicates the vessel, a

the neck or portion of the vessel surrounding the opening a and B the internally-screw threaded ring, whichis-made of "a harder then strip the edges ofthe screw-threads.

With my ring of'harder-and stronger metal this strain isresisted by the ring.

To secure the ring to the vessel, I provide the ring with a groove 1) or with one or more projecting ribs b b. The groove or the rib or ribs I provide with rectangular shoulders ,b .,'and to assist in holding the ring B against rotation under strain I provide the ring with the.preferably-inclined seats 6 b In the preferred form I extend the metal of the vessel'tothe diameter of the opening in the ring B, so as toform the annular lip a cover the peripheral surfaces of the ring B and also the lower edge of the same with a suitable solder and preferably witha flux, such'as is used and well known to facilitate the uniting of the metals. I now place the so-prepared ring into a mold and cast the metal of the vessel into the mold and around the ring. Thegmolten metal on coming in contact with the solder unites with the ring,

filling the groove or grooves and the seats, and in cooling becomes firmly secured to the When strain is exerted on the inter; nally-screw-threaded ring,'the metal of the ring.

the-neck a, of'the hard-metal ring B the the'seats and the recessesbetween the ribs,

whereby the ring is secured to the vessel, as described. I Y V In testimony whereof- I have signed my name to this specification in the presence of two subscribing witnesses.

ALBERT s. NEWTON."

Witnesses:

J. A. MILLER, J r., B. M. SIMMs. 

